package com.taptech.doufu.ui.view;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.widget.ImageView;
/**圆角图片*/
public class RoundImageView extends ImageView {
	
    public RoundImageView(Context context, AttributeSet attrs) {
            super(context, attrs);
            init();
    }

    public RoundImageView(Context context) {
            super(context);
            init();
    }

    private final RectF roundRect = new RectF();
    private float rect_adius = 90;
    private final Paint maskPaint = new Paint();
    private final Paint zonePaint = new Paint();

    private void init() {
            maskPaint.setAntiAlias(true);
            maskPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
            //
            zonePaint.setAntiAlias(true);
            zonePaint.setColor(Color.WHITE);
            //
            float density = getResources().getDisplayMetrics().density;
            rect_adius = rect_adius * density;
    }

    public void setRectAdius(float adius) {
            rect_adius = adius;
            invalidate();
    }

    @Override
    protected void onLayout(boolean changed, int left, int top, int right,
                    int bottom) {
            super.onLayout(changed, left, top, right, bottom);
            int w = getWidth();
            int h = getHeight();
            roundRect.set(0, 0, w, h);
    }

    @Override
    public void draw(Canvas canvas) {
            canvas.saveLayer(roundRect, zonePaint, Canvas.ALL_SAVE_FLAG);
            canvas.drawRoundRect(roundRect, rect_adius, rect_adius, zonePaint);
            //
            canvas.saveLayer(roundRect, maskPaint, Canvas.ALL_SAVE_FLAG);
            super.draw(canvas);
            canvas.restore();
    }
}
